Bosch ADS?AMC2?2WCF - Grounding for Extension Interface

Access Modular
Controller 2
Installing | en 23
Bosch Security Systems B.V. 2019-11 | V02 |
The internal ground of the controller is always connected with
the ground of the RS-485 host.
The jumper setting A1 shows the factory settings.
Jumper JP1 connects the internal ground of the controller to
the ground of the RS-485 host interface.
Jumper JP2 manages the signal ground.
Settings for jumper JP1:
If the ground conductor and the shield on the host are not
connected and:
– no party line exists, the jumper JP1 is set (=A2)
– a party line exists, the jumper JP1 is set at the first device
only (=A2)
Settings for jumper JP2:
If the ground conductor and the shield on the host are not
connected and:
– no party line exists, the jumper JP2 is set (=A3)
– a party line exists and signal ground is connected, the
jumper JP2 is set at the first device only (=A3)
– a party line exists and signal ground is not connected, the
jumper JP2 is set at all devices (=A3)
4.6.2 Grounding for Extension Interface
Delivery statusB 1:
B 2:
B
Figure4.6: Location of ground jumper bottom side